How to Fix Graphical glitches in apps + freezing - Catalina/OC 0.6.6

How to Fix Graphical glitches in apps + freezing - Catalina/OC 0.6.6

This mini-guide provides a structural approach to troubleshoot and fix the issue.

Prerequisites

• Confirm your hardware specifications (CPU, GPU, Motherboard).
• Ensure you have a bootable recovery USB and backup your EFI.

Fix Steps

1. Check if your GPU requires WhateverGreen or specific boot-args (e.g., agdpmod=pikera).
2. Ensure Metal acceleration is fully supported for your macOS version.
3. Update Lilu and WhateverGreen to the latest versions.

Verification

• Reboot and verify if the functionality is restored and stable under typical usage.

Original Question:

OpenCore 0.6.6 Motherboard: ASUS Prime-A Z390 CPU: i7-9900K iGPU: UHD 630 RAM: G.Skill Ripjaws V Series (2x16GB) 32GB DDR4 Storage: Samsung 970 Evo 1TB Install method: I did the setup through Dortania's Vanilla Desktop OpenCore guide I'm able to login fine, but within apps like spotify and discord, most images look like this: https://preview.redd.it/i6hutxaql7h61.png?width=1712&format=png&auto=webp&s=35424c20497b3d732aaabdac07780caa08ebf5dd The whole computer will also just lockup and freeze forcing me to shut it down. Any insight into this from anyone that's had/seen this issue before? submitted by /u/carouselz [link] [comments]